Nick Jandl

The murder of a petty officer in a small town outside DC prompts NCIS to once again work with The Sherlocks, a privately funded investigative team.

A Navy officer is killed while driving a car belonging to the socialite daughter of a real estate mogul. LAPD officer Marty Deeks struggles to fit in with the team in his new role as the NCIS/LAPD liaison officer.

Casey asserts his authority while trying to save a teenager trapped in barbed wire, causing an argument with Severide; Otis attempts to get Casey to agree to test an expensive piece of firefighting equipment.

Max is brought into Angels Memorial when he starts to have difficulty breathing. Plus, Willis decides to try and get to the bottom of what happened to his brother's unit.

Emmet wants to find a surprising way to propose.

Juliette hits a career high, including singing a duet with Steven Tyler, but her personal life plummets. Meanwhile, Avery takes care of baby Cadence at his parents' home in Texas and Rayna deals with the aftermath of Deacon's liver transplant.